Intelligence · Disclosure tracker
Every public disclosure, dated and sourced.
Public breach disclosures from regulators, court filings, company notices and news reporting, each recorded with its date and a link to the original. Updated daily.
5,380
Disclosures in the tracker, all years
2,093
Of those, indexed in 2026
14
Added in November
25
Added in the last 7 days
7
Sectors covered
Source: LeakTrace disclosure tracker, 4 Nov 2026. Counts of records in the index, not estimates. Software advisories and security news are not counted.
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Cyberattack disrupted hospital operations, patient records at risk
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient records at risk
23 Oct 2023
High23 Oct 2023
Azienda Ospedaliera di Verona
Healthcare · Records not stated
Rhysida ransomware hit hospital, patient records and medical images stolen
23 Oct 2023
Critical23 Oct 2023
Five Ontario Hospitals (TransForm)
Healthcare · 267,000 records
TransForm cyberattack hit 5 hospitals in Windsor-Essex, 267,000 patients notified
23 Oct 2023
High23 Oct 2023
Mackenzie Health (York Region)
Healthcare · Records not stated
Cyberattack disrupted hospital operations, patient care diverted to other facilities
23 Oct 2023
Critical21 Oct 2023
Tunngle
Retail · 8,192,928 records
8,192,928 records exposed, Email addresses, IP addresses, Passwords, Usernames
21 Oct 2023
High20 Oct 2023
Sphero
Education · 832,255 records
832,255 records exposed, Dates of birth, Email addresses, Geographic locations, Names and 1 more
20 Oct 2023
Critical19 Oct 2023
Okta (UK/Global Impact)
Technology · Records not stated
Customer support system breach exposed session tokens, Cloudflare, 1Password impacted
19 Oct 2023
Critical19 Oct 2023
19 Oct 2023
Critical18 Oct 2023
Corewell Health
Healthcare · 1,000,000 records
1M patient records exposed via Welltok vendor breach
18 Oct 2023
High17 Oct 2023
Phoenix
Technology · 74,776 records
74,776 records exposed, Email addresses, IP addresses, Passwords, Usernames
17 Oct 2023
Critical17 Oct 2023
AndroidLista
Retail · 6,640,643 records
6,640,643 records exposed, Email addresses, Names, Passwords, Usernames
17 Oct 2023
Medium16 Oct 2023
Yamaha Motor Canada
Sector not stated · Records not stated
Ransomware compromised Canadian subsidiary, employee data stolen
16 Oct 2023
Critical16 Oct 2023
Comcast Business
Sector not stated · 35,900,000 records
35.9M customer records exposed in CitrixBleed exploitation
16 Oct 2023
Critical16 Oct 2023
Xfinity / Comcast (CitrixBleed)
Technology · 35,900,000 records
35.9M customers affected by Citrix Bleed exploitation
16 Oct 2023
Critical16 Oct 2023
Comcast Xfinity
Technology · 35,900,000 records
35.9M customer records exposed via Citrix Bleed vulnerability
16 Oct 2023
Medium16 Oct 2023
16 Oct 2023
Medium15 Oct 2023
15 Oct 2023
Medium15 Oct 2023
15 Oct 2023
Medium15 Oct 2023
15 Oct 2023
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